Fastening inserting machine



I NOV. 23, 1948. BLANCHARD 2,454,302

FASTENING INSERTING MACHINE Filed May 18, 1945 1 4 Sheets-Sheet l S lnz/enfor F Benjami n BBZancizard B z'sA neg Nov. 23, 1948.

B. I B. BLANCHARD FASTENING INSERTING MACHINE 4 Sheets-Sheet 2 Filed May 18, 1945 in V8 72 i0 7" Bnjcimz'fzBBZancfzczrd Nov. 23, 1948. B. B. BLANCHARD FASTENING INSERTING MACHINE 4 She'ets-Sheet 3 Filed May 18. 1945 lnz/enzor Benjamin BBZanc/wrd Nov. 23, 1948. B. 'B. BLANCHARD FAsTENING INSERTING MACHINE 4 Sheets-Sheet 4 Filed May 18, 1945 v In men for Benjamin BBZqnc/zard Patented Nov. 23, 1948 UNITED STATES PATENT OFFICE FASTENING INSERTING MACHINE Benjamin B. Blanchard, Swampscott, Mass, assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application May 18, 1945, Serial No. 594,448

10 Claims. (01. 1-20) This invention relates to fastening inserting machines, and is herein illustrated as applied to a shoe lasting machine of the type disclosed in United States Letters Patent No. 2,325,100;

granted July 27, 1943, on an application filed in has been fed into fastening forming mechanism in position to be severed and to be formed into a staple. It is a further object of the invention to insure that the 'work is properly positioned in the machine, particularly that the portion of the shoe bottom where the staple is to be inserted is located in proper position heightwise of the machine so that the wiper with which machines of this type are usually provided will not strike against the edge face of the bottom member of the shoe, for example, the insole, when moving I outwardly of the machine to lay the tensioned marginal portion of the shoe upper inwardly over and against the insole.

To this end and in accordance with one feature of the invention, the illustrated machine is provided with novel fastening'severing mechanism comprising two relatively movable knives adapted to sever the fed-in leading end portion of the strand of fastening material (wire) from the strand, the fastening severing mechanism including means for moving the two knives as a unit into wire severing position and thereafter for reversing the movement of one of the knives while the other knife remains stationary. Thus, the knife, the movement of which is reversed, is caused to cut the wire against the other stationary knife which acts as a support for the wire in addition to the fastening forming mechanism into which a piece of wire has been fed.

Thus any deflection of the fed-in piece of wire during and as a result of the severing operation is effectively prevented. Moreover, the fase tening forming mechanism which, as in the machine of the above-mentioned patent, is moved outwardly and inwardly of the machine during one cycle of operations, has its forward movement into staple inserting position divided into two stages separated by a period of dwell, the arrangement being such that, during the first stage of the forward movement of the fasten- 2 ing forming mechanism, the two knives are moved as aunit therewith and that, during the period of dwell, the wire is severed, one knife, as explained, remaining stationary while" the other knife cuts the wire in moving rearwardly of the machine. This makes it possible to ex tend the wire severing operation over a longer period of time during one cycle of operations than was possible heretofore. During the second stage of the forward movement of the fastening forming mechanism the severed piece of wire is formed into a stapleand moved into position to be inserted into thework by the driver.

In accordance with another feature of the invention there is provided a movable bottom gage adapted initially to engage the shoe bottom near the edge thereof,'the bottom gage being moved inwardly over the shoe bottom by the fastening forming mechanism upon movement of the latter into fastening inserting position. Thus the'bottom gage acts to prevent the fastening forming mechanism from striking against the edge face of the insole in moving into its fastening inserting position over the shoe bottom.

These and other features of the invention'will now be described in detail with reference to the accompanying drawings and willbe pointed out in the appended claims.

In the drawings,

Fig. 1 is a right-hand side elevation of the head of a machine in which the present invention is illustrated as embodied, certain unessential parts being broken away;

Fig. 2 is a right-hand side elevation of the fastening forming mechanism, its actuating mechanism and mechanism for actuating the wire severing knives, the machine parts being shown in their initial positions;

Fig. 3 is a right-hand side elevation of the wire severing mechanism and part of its actuating mechanism, the machine parts being shown in their initial positions Fig. 4 is a front elevation of the machine head with unessential parts broken away;

'Fig. 5 is a right-hand side elevation of the bottom gage and part of the fastening forming mechanism in its operative staple inserting position;

Fig. 6 is an exploded view of the wire severing knives and staple formers;

Fig. 7 is a right-hand side elevation of the wire severing mechanism and its actuating mechanism, the machine parts being shownin the positions which they assume immediately after the wire severing operation;

Fig. 8 is an exploded view of the slides carrying the Wire severing knives and of parts of their actuating levers; and

Fig. 9 is a schematic illustration of the mechanism for actuating the wire severing knives, the principal parts of that mechanism being shown in different positions during one cycle of operations.

As previously stated, the invention is illustrated as embodied in a machine of the type disclosed in my above-mentioned Letters Patent and accordingly only so much of that machine will be disclosed herein in detail as is necessary for an understanding of the present invention.

General organization The machine illustrated inthe drawings, the same as the machine disclosed in the above-mentioned patent, is adapted to tension progressively a shoe upper U (Figs. 2 and over a last L along opposite sides thereof and, if desired, around the toe end of the last, to wipe the marginal portion of the upper inwardly over a sole member, such as an insole I, provided on the-bottom of the. last L, and to secure that marginal portion in over-- lasted relation to the insole, by fastenings, such as wire staples. The-work to be operated. upon, and. comprising the upper U, the'last Land the insole I, is held-in the operators hands and successiveportions of the marginof the shoe upper are presented to the operating instrumentalities of the machine to be tensioned over the last and to be: secured in lasted relation to the insole by the staples. To determine the proper position of the-work with relation to the operating instrumentalities of the machine, the latter is provided with a shoe bottom rest 20 (Fig; 1) which is secured to the" machine frame, a thin edge gage 22 which is employed when lasting the sides of the 'work,.and a thick edge gage-24' which is employed when lasting around the toe end of the work. As inthe prior machine, the thin edge gage 2.2 is secured to a bracket 26 fast on the machine frame, whereas the thick edge gage; 24- is slidably' mounted on the bracket, 26 and is manually-movable into'sand out of operative position for use in' placie of the thin edge gage 22.

In addition to the two ed'gegages 22' and 24 there is provided a movable bottom gage 23 (Figs. 1, 2, 4 and 5), the construction and operation of which will be described later. In its initial position the-bottom gage '28 positions that portion of the shoe bottom, near the edge thereof, where a fastening is to be inserted accurately heightwise ofthe machine.

For tensioning theupper heightWise of the last there is provided a gripper 30' (Fig. 1) and for laying the marginal portion of the upper inwardly over the insole I there is provided a wiper 32 which. is. arranged for movement outwardly of themachine and inwardly over the shoe bottom, the Wiper 32 also functioning as a fastening transferring throat since it serves the additional purpose of movingthe'cformed.fastening into position tozb'e inserted by'a driver 34. To prevent the wiperorthroat 32.:on outwardmovement: from abutting; the insole edge :face, the bottom gage 28 is provided; In moving outwardly of thema- 'chine,:the wiper'tz 'is causedto engage the bottom age 28 and to move the bottom. gage outwardly of the machine and inwardly over the shoe bot- 'tom..

The fastening inserted by the machine is a staple which is formed in the machine from a piece of wire severed-by a wire severing mechanism from the leading end portion of a wire strand after a predetermined and adjustable length of wire has been fed by a Wire feeding mechanism into a fastening forming mechanism. The wire feeding mechanism (not shown) is substantially like the wire feeding mechanism disclosed in the above mentioned patent. This mechanism serves intermittently to advance the wire strand a predetermined length through a flexible wire guiding conduit 36 (Figs. 4 and 6) into the fastening forming mechanism.

The fastening forming mechanism is substantially the same as the fastening forming mechanism disclosed in the above-mentioned patent. Its main elements are the already mentioned wiper or throat 3.2 to which is imparted one horizontal reciprocation outwardly and inwardly of the machine during one cycle of operations, an inside staple former 38 and an outside staple former 49 (Figs. 1, 2, 5 and 6). The fastening forming. mechanism,:including the throat 3.2 and theforrners 318 and 4.0,. is carried on a slide 42, hereinafter called the throat slide. The throat slide 22 is movable inwardly and outwardly of the machine in. a .guideway provided .in the machine frame.

The wire severing. mechanism comprises primarily two knives, namely, a top knife 44 (Figs. 3., 4, 6, 7v and 8) mounted formovement in a .direction parallel to the directionof movement of the throat slide 42, and a bottom knife 46 mounted for movement independently from the top knife it, also in a direction parallel. to the direction of movement of'the throat slide 42. The entire wire severing mechanism. is supported on a slide 48 (Figs. 2, 3:, 4 and '7) which is adjustable in a direction transversely of the direction of movement of the throat slide 42' to vary the length .of the wire to be severed and thus the length of the staple to be formed. The slide 48, which may be referred to as the transverse slide, is mounted for movement on a bracket 50 secured to the machine frame.

The fastening forming and inserting mechanism As in. the machine of the above-mentioned patent, the driver 34 is secured tovthe lower end of a driver bar 52 (Fig. l) which is raised by a cam (not shown) against the resistance of a torsion spring (not shown) and which is released by the cam to the action of the loaded torsion spring to insert a staple into the work, the staple being contained in the throat or wiper 32 and the staple inserting movement of the driver taking place after the slide 42 and the throat 32 have completed their forward movements outwardly of the machine during which the wiper or throat132has laid the tensioned marginal portion of the upper U inwardly over and flat against the insole I. As will be explained the wiper 32 has a passageway'for guiding the driver 34 and the staple. In order to aline. the driver 34 with the passageway :of the wiper 32, the throat slide 42. is provided. with an adjustable abutment 5 (Figs. 1 and 2) engaging the driver bar 52 on outward movement of the throat slide 42 and swinging the driver bar outwardly of the machine. To. determine the foremost position of the driver bar 52 in the machine there is provided a bar156 adjustably secured to the machine frame and provided with a laterally deflected end portion acting as a stop for the driver bar '52.

The inside former 38 and the outside former M] are mounted and actuated in the following manher. As stated, both formers are carried by'the throat slide 42, the slide also carrying part of the mechanism for operating the formers, namely for gripping the wire before the wire is severed and thereafter for forming a staple from the severed piece of wire. Conveniently'the forward movement of the throat slide 42 is utilized to operate the formers and in order that the throat slide 42 may receive a reciprocatory movement of sufficient extent fort-he purpose in view, it is formed in two parts connected together by a lever 58 (Fi 1) fulcrumed to the machine frame. The lever is pivoted at its upper end to the forward portion of the slide 42 and is pivoted substantially midway between its ends to the rear portion 60 of the slide 42 which is reciprocated once in each cycle of operations of the machine by the usual lever 62 and cam 64. However, the cam is so designed that the forward movement of the throat slide 42 is not continuous but takes place in two stages separated by aperiod of dwell, the arrangement being such that the two formers 38 and 40 are caused to grip the wire between them during the first stage of movement of the throat slide 42, that the wire is severed during the dwell of the throat slide and that the formers 38 and 4|! are operated to form the staple during the second stage of the forward movement of the throat slide 42.

The outside former 40 is carried on the lower end of a slide 66 (Figs. 1 and 2) arrangedfo-r movement heightwise of the machine in an inclined guideway 68 which is formed in the forward end of the throat slide 42, the slide 66 having a yielding pivotal connection, as in the machine of the above mentioned patent, with the forward end of a cam lever T pivotally secured to the throat slide 42 and carrying at its rear end a roll 12 engaging a cam track 14 provided in a bracket secured to the machine frame. The cam track i4 is so shaped that, during the first stage of the forward movement of the throat slide 42, the outside former 40 is first yieldingly lowered to grip the fed-in piece of wire against the inside former 38.

The inside former 38 is slidablymountedin a guideway formed in the forward end of the throat slide 42, the inside former being arranged for movement into and out of operative relation to the outside former 40 and being normally held in its forward position by a torsion spring l6 (Fig. 4) which is coiled about the right end portion of a short shaft 18 mounted to turn in the forward end of the throat slide 42. The shaft 18 has formed integrally with it a downwardly extending arm 80 (Fig. 2) the rounded lower end of which extends into a recess in the inside former 38 and which serves to move the inside former. Clamped to the right-hand end of the shaft Hi by means of a, nut 82 is an arm 84 which is provided with a rearward extension 86 acting by engagement with an adjustable screw 83 carried by the throat slide 42 to limit and determine the forward position of the insideformer 38. The arm 84 extends forwardly and upwardly, as shown in Fig. 2, and lies in the path of movement of a roll 90 carried by 2. depending portion 92 on the front arm of the cam lever Hi.

The outside former 40 is provided with a passage 94 (Fig. 6) for the driver 34 which passage is in alinement with a similar driver passage 96 (Figs. 2 and formed in the wiperor throat 32. The inside former 38 normally extends into position to cooperate with the outside former 40 and to act as a support for the fed-in portion of the wire strand. The inside former 38 is provided with a horizontal slot 98 (Fig. 6) ending in an enlarged round portion I00 through which the wire is fed. The outside former 40. has a horizontal recess I02 cooperating with the slot 98 in the initial position of both formers to guide the wire when it is being fed into the fastening-forming mechanism. As stated, the shape of the cam track 14 is preferably such that substantially at the beginning of the forward movement of the throat slide 42, the cam lever it is swung in a counterclockwise direction, as viewed in Fig. 1, to impart downward movement to the slide 65 so as to cause the outside former 4d yieldingly to clamp the fed-in portion of wire against the inside former 38 preparator to the wire severing operation. Moreover, as a result of this movement of the cam lever 10, the inside former 38 is slightly retracted, thusbringing the wire into the narrow forward portion of the slot 98. Thereafter the two formers dwell as the throat slide 42 dwells during its forward movement and as the wire is being severed. Then, during the second stageof the forward movement of the throat slide 42, the staple is formed as already mentioned, the outside former 40 being moved all the way down on top of a shoulder I04 (Figs. 2, 4 and 5) of the wiper or throat 32 and the inside former 38 being fully retracted out of the way of the driver 34 which descends to drive the formed staple through the upper U and the insole I, the legs of the staple being clenched against a, metal plate P with which the bottom of the last L is provided.

It will be understood that with the outside former 40 in its lowermost position, there is provided a substantially continuous passage through it and through the wiper 32 for the staple and the driver 34, and that the staple and driver passages are moved into alinement with the driver 34, the

position of which, as explained, is determined by the front end of the bar 56.

The wire feeding mechanism The wire feeding mechanism, as already explained, is substantially the same as the wire feeding mechanism disclosed in the above-mentioned patent. The mechanism includes, as in the prior machine, an adjustable stop screw I06 (Fig. 4) and an arm I08 which is part of a bell-crank lever, the screw I06 acting to limit the extent of swinging movement of the bell-crank lever under the influence of a spring (not shown) thus stopping the operation of the feed Wheel (not shown) when a predetermined length of wire has been fed into .2 position to be acted upon by the inside and outside formers. The stop screw W5 is carried by a plunger H0 which is vertically movable in a recess in the machine frame. a locknut H2 being provided for holding the screw I06 in adjusted position relatively to the plunger i W. The plunger H0 rests on the edge face H4 of a segment H5 which is secured to the left-hand end portion (Fig. 4) Of a shaft H8 mounted in a bearingin the above-mentioned bracket 50. The edge face i I ll of the segment I I6 is eccentric to the axis of the shaft H8 and, in order that the segment may be rotated quickly to vary the heightwise position of the plunger l0 and thus of the stop screw I06, and accordingly to vary the length of wire fed and the length of staples to be formed, there is fast to the right-hand endportion of the shaft I I8 a hand lever l2!) (Figs. 1, 2, 4). For determining the proper limits of movement of the hand lever I20 in opposite directions to vary the position of the stop screw I 06, there ar provided stops 122, I24 ad-jus'tably secured int a curved :guideway I26 formed in a bracket I28 secured to the bracket 50.

I The wire severing-mechanism Aspreviously explained, the wire severing mechanism includes two knives- 44 .and 4'5 which are carried by the transverse slide 48. The transverse slide 48 is adjustedswhenever the length of wire fed to form staples is varied; this .to insure that the knives 44 and 46.- will be positioned in proper relation to the inside former 38 and the outside former 40 so-that the legs of each staple, when formed from eachsevered piece of Wire will beequally long. To this-end there is pivotally secured to the bracket 59 atwo-armed lever I30 (Fig. 4)., the forked upper arm I32 of which engagesa pin I34 carried by the slide48. Thelower arm I-36 of the lever I38 carries a pin 38 which .engages a. cam. groove I48 provided in the segment H5. The shape of the cam groove 148 is such that in all positions of adjustment .of the segment IIB and the-stopscrew I66, the knives44 and 46 will be positioned in proper relation to-the inside and outside formers.

To aid in keeping the slide 48 in whatever position of adjustment it may be and to prevent coiledup on a reel (not shown) mounted .on the machine frame. The wire guiding passage I50 emerges from an inclined upper face of the bottom knife 46 with which cooperates a similarly inclined lower face of the top knife 44 to. sever the wire after it has been fed into the fastening forming mechanism. The bottom knife 46-has a guide rib I54. which fits into a guideway provided in a depending portion I56 (Figs. 3, 7 and 8) of a bottom knifeslide I58 to which the bottom knife is secured by a screw I58. The slide I58 is constrained to move in a horzontal direction parallel to the direction of movement of the-throat slide 42 and to this end the slide 958 has a rearwardly extending cylindrical stem I60 engaged in abore I62 provided in a top knife slide I64. The slide I64 is substantially block-shaped and is movable in a guideway I66 provided in the transverse slide 48 in a direction parallel to the direction of movement of the throat slide 42. The guideway I66 for the top knife slide I64 is formed in part by a gib 568 secured to the right-hand end face (Fig. 4) of the transverse slide- 48 by screws H9. The bottom knife slide I58 is prevented from turning about the axis of its stem I88- by the provision of a square recess H2 in the top knife slide I64 into which recess snugly fits a square portion I34 of the bottom knife slide I 58. The top knife 44 has a guide rib I 16 (Fig. 6) which fits into a vertical guideway provided in the top knife slide I64, the top knife 44 being secured to its slide I64 by a screw I18. The two knives 44 and 45 are operated by common mechanism first. to move as a unit with the throat slide 42 during the first stage of the forward movementof the latter to keepthe knives alined with the in- 8 side and outside formers-after the wire; has. been fed therethrough. Then, during the-period of dwell in vthe forvvard. movement of the throat slide 42, the two knives 44' and 46 are moved with relation to each other .to'sever the piece 'of wire fed into the fastening forming mechanism from the wire strand preparatory to the'forming of a staple from that piece of wire. More parparticularly, in the wire severing operation, the top knife remains stationary and'the' forward movement of the bottom knife 46 is reversed to out against the top knife. To this end there is provided in the upper portion of the transverse slide 48 a bearing I (Figs. .2, 4 and 7) for'a stub shaft I82 on which is mounted a two-armed rocking lever I84. The left arm I86 of the rocking lever I84 is provided with a cam groove I88 designed to impart to the bottom knife 46 its particular movement. The right arm I50 of the rocking lever I84. also is provided with e cam groove i92 which is designed to operate the top knife .44.. In particular the bottom. knife 46.- is operated by a substantially vertical lever I'94pivotallysecured at I86 to the transverse slide 48.and

. carrying at its upper end a cam roll- I98 which is engaged in the cam groove I88. The lever I'94 is .split at its lower end to carry a'stud .ZIlIlv (Fig. 8) which extends into a block 202 carried inthe fork-shaped front end of the bottom knife'slide I58. The cam groove I88 isso designed that, during the forward movement of the throat slide 42, the bottom knife 46. is first-moved as a unit with the throat slide, whereupon its movement is re.- versed while they throat slide dwells. To actuate the top knife 44 there is provided a substantially vertical lever 2 04 pivoted at 2 06. to the transverse slide 48 and carrying at its upper end a roll engaging in the cam groove I92. The lower end of the lever 204 is splitand carries a stud 2.08 (Fig. 8) extending into. .a block 289. The block 209 fits into a guideway provided. in one side of the top knife slide I64. The design of the cam groove I92 is such that the top knife .44 is moved with the throat slide 42 during the first stage of the forward movement of the latter and then is caused to dwell during the dwell of the throat slide.

The rocking lever I84 is oscillated about the shaft I82 in time relation to the movement of the throat slide 42 by the vertical. arm of a bell crank lever .2I0 (Figs. 2, 4 and7) which. has a fork-shaped upper end pivotally connected .at 212 .to an upwardly extendingarm 2L4. of the rockin lever I84. The bell crank lever 2!!) is ful crumed on a shaft 2 I6 mounted in bearings providedin the transverse slide 48. A rearwardlyand upwardly extending arm of the bell crank lever 2M3 has a forked end 2I8 (Fig. 4) which carries a transverse pin 2Z0 engaged by the fork-shaped end of .a cam-operated lever .222. The lever 22-2- is pivotally secured .at 224 to the machine frame and carries a roll 22.5 which engages a cam groove 228 in a cam disk 238. The cam disk23ll is rotatable on a shaft 232 mounted in the machine frame, it corresponding to and being actuated like the cam disk in the machine of the above-mentioned patent from which power for operating the wire turning mechanism is derived. The Wire turning mechanism is not employed in the present machine. It. is to be understood that the cam groove 228 is designed. differently to impart the proper motions to the rocking lever I84 and thereby to the knives 44- and '46. Theforked end 2:18 of the-bell. crank lever 2 I0 is sufiiciently wide and the transverse pin. 220 is sufficiently. long-to 3.9 permit thetransverse adjustment of the bell crank lever 2I0 with the transverse slide 48, this adjustment taking place with relation to the cam operated lever 222.

The chief component parts of the above described mechanism for actuating the wir severing knives and their motions are schematically illustrated in Fig. 9 of the drawings. These parts are the cam operated lever 222, the bell crank lever 2I0, the rocking lever I84 with its upwardly extending arm 2I4 and the two cam grooves I88 and I92, the lever I94 actuating the bottom knife Lslide I58 and deriving its motion from the cam groove I88, and the lever 204 actuating the top knife slide I64 and deriving its motion from the cam groove I512. The cam operated lever 222, by which this mechanism is set into motion, is shown in three different positions indicated by the reference charactersa, b and c and distinguished from each other in that the initial position a is shown in full lines, the intermediate position .b (occupied after the first stage of the forward motion of the throat slide 42 and before the wire severing operation) is shown in dash lines, and the final position (occupied at the conclusion of the wire severing operation) is shown in dotted lines. The other machine parts illustrated in Fig. 9 (with the exception of the rocking lever I84) are shown in three different positions corresponding to the positions a, b and c of the cam operated lever 222. In particular, it will be noted that during and as a result of the movement of the cam operated lever 222 from the position a to the position b, the levers I94 and 204 actuating the knife slides I58 and IE4 move equal distances from the positions a to b and a to 1)" respectively. This movement of the levers I94 and 204 is concomitant with the first stage of the forward movement of the throat slide 42. While the throat slide 42 dwells thereafter, the lever 222 moves from the positions I) to c, causing a reverse movement of the lower end of the lever I94 from the positions I) to c. The lower end of the lever 204, however, remains stationary at that time. This reverse movement of the lever I04 causes a reverse movement of the bottom knife 46 toward the then stationary top knife 44 during the course of which movement the wire is severed.

The bottom gage mechanism The bottomgage 28, as already mentioned, is movable inwardly and outwardly of the machine. It extends laterally from a, slide 234 to which it is secured. The slide 234 has a T-shaped guide rib 236 (Fig. 4) fitting into a T-shaped horizontal guideway 238 provided in the bracket 50 so that the slide 234 with its bottom gage 28 may be moved with relation tothe bracket 50. The slide 234 has extending laterally therefrom a pin 240 (Figs. 2 and 4) to which is secured the front end of a spring 242 the rear end of which is anchored to the machine frame. The spring 242 thus tends to pull the slide 234 inwardly of the machine until a downward projection 244 of the slide 234 engages a lateral projection 246 provided on a rod 248 mounted for adjustment in a horizontal bore provided in the machine frame and held. in adjusted position by a set screw 250. with it the wiper or throat 32 is advanced outwardly of the machine, it engages the bottom gage 28 and pushes it and its slide 234 outwardly of the machine and inwardly over the shoe bottom. When the wiper 32 is again retracted, the

When the throat slide 42 and plicati-on Serial No. 770,005, filed August 22, 1947;

Operation In the initial inoperative position or the nia= chine parts the throat slide 42 is in its rear= ward position, the outside former 40 is in its uppermost position and the inside former 38 is in its forward position in cooperative relation to the outside former. The driver 34 is in its upper position. Both the bottom knife slide I58 and the top knife slide I84 are in their retracted positions. Before starting the operation of the machine the operator presents the work to the machine in a position determined by the edge gage 22 (or the edge gage 24), the bottom rest 20 and the bottom gage 28. The marginal portion of the shoe upper U is inserted between the open jaws of the gripper 30. After initiation of the machine operation, a piece of wire is fed through the bottom knife passage I50 into and through the recess I02 of the outside former 40 and also through the round portion I00 of the slot 98 of the inside former 38. This consumes about 100 of one cycle of operations. During the next 40 of the cycle the throat slide 42 is advanced slightly about A) with the result that the outside former 40 is lowered somewhat (about T%") to grip the fed-in piece of wire and that the inside former 38 is slightly retracted (about ,6 to bring the wire into the front portion of the slot 98. At the same time, both the bottom knife,slide I58 and the top knife slide I84 are advanced about A" to keep the knives 44 and 46 in alinement with the staple formers 38 and 40. Then the throat slide 42 dwells for a further 40 of the cycle, with the result that the staple formers 38 and 40 dwell. The top knife slide I64 (and thus the top knife '44) also dwells during that period but the bottom knife slide I58 is reversed to cause the bottom knife 46 to sever the fed-in piece of wire by cutting rearwardly of the machine against the stationary top knife 44. Both knives, after the wire has been severed, dwell for a further 60 of the cycle during which the advance of the throat slide 42 into its operative position is resuamed, as a result of which the wiper 32 lays the margin of the upper which, in the meantime has been tensioned by the gripper, inwardly over and against the insole I, thereby also pushing the bottom gage 28 inwardly over the shoe bottom. As a further result of this forward movement of the throat slide 42, the outside former 40 is caused completely to move into its lowermost position, thus bending the severed piece of wire about the inside former 38 and forming the staple, the inside former 38 being ultimately retracted into its rearmost operative position out of the path of movement of the driver 34.

During the succeeding 60 of the cycle the driver 34 descends to drive the staple into the work while the outside former stays down and theinside former is kept retracted. The driver then is immediately moved back to its elevated position. During this period the knife slides begin their rearward movements into their initial retracted positions and finally the throat slide 42 goes back thereby elevating the outside former and advancing the inside former to its inill .tial position in operative relation to the outside former and in readiness to, receive a new piece of wire at the beginning of the next cycle of operations.

Having described the invention, what I claim as new and desire to secure by Letters. Patent of the United States is:

1. In a fastening inserting machine, fastening forming mechanism, a fastening inserting driver cooperating therewith, means including two relatively movable knives adapted to sever a fastening from fastening material fed into said mecha- "nism; and means for moving the two knives as a unitin-to fastening severing position and thereafter for reversing the movement of one of the knives while holding the other knife stationary thereby to sever the fastening from the fastening material.

'2. In a fastening inserting machine, fastening formingmechanism movable relatively to a piece of-vvork presented to the machine into a position in which a fastening contain-ed therein may be inserted into the work, a fastening inserting driver cooperating with said mechanism, means ini-luding tw'o "relatively movable knives adapted to sever a fastening-from fastening material fed into said mechanism, and means for moving the two knives-as a unit into fastening severing position'and in the same direction as the direction of movements of the fastening forming mechanism i'nto fastening inserting position and thereafter "for reversing the movement of one of the knives "while holding the other knife stationary thereby to sever the fastening froin'the fastening material.

In a"fastening-inserting machine, fastening forming mechanism movable relatively to a piece of'work presentedto'the machine into a position in which-a fastening containedtherein may be inserted into the work, means for moving said infechanismfmeans including tworelatively movable "knives adaptedfto "sever a fastening from fastening material fedinto said mechanism, and

'm'e'anssepar'ate from'said moving means for mov- I ing the two knivesas a unit into fastening severing position and thereafter for reversing the movementoffone of'th'e knives while holding the other knife stationary thereby to sever the fastening from the fastening material.

4. In a'fastening inserting machine, fastening forming mechanism movable relatively to a piece ofwork presentedtothe machine into a position in which'a fasteningbontained therein "may be inserted intofithe work, means for'moving said mechanism into. fastening inserting'position. in two'stages separated'by a period of' dwell, means including two relatively movable knives adapted to sever a, fastening. from fastening material fed intosaid mechanism, and means for moving both knives "as a unit into fastening severing position during the. first stage, of the movement of said mechanism and thereafter and during the period 'of :dwe1l of said mechanism for reversing the nihvement of 'onebf the 'knives'wh'ile holding the other knifestationary thereby to sever the-fasten- 'ing from the fasteningmaterial.

5.. In a fastening inserting'machi'ne, fastening forming, mechanism'movable relatively to a piece of work presented to the machine intoa position infwhich afastening contained therein may be inserted into the work, means for moving said mechanism into fastening inserting position in two stagesv separated by a period of dwell, means including two relatively movable knives adapted 1-2 to sever a fastening, from fastening material; fed into said mechanism, and means separate from said moving means for moving both knives as a unit into fastening severing position and: in the same direction as the direction of movement of the fastening forming mechanism into fastening inserting position during the first stage of the movement of said mechanism and thereafter and during the period of dwell of said mechanism for reversing the movement'of one ofthe knives while holding the other knife stationary thereby to sever the fastening from the fastening material.

6. In a fastening inserting machine, fastening forming mechanism movable relatively to a piece of workpresented tosthe machine into a position in which a fastening contained therein may be inserted into thework, means for moving :said mechanism into fastening inserting position in two stages separated by a period of dwell, means including 'tworelatively movable knives adapted to sever a fastening from fastening material fed into said mechanism,means for moving said fastening forming mechanism, and means separate from said moving means for moving both knives as a unit in t'o fastening 'severing positionand in the same direction'as the direction of movement of the fastening forming mechanism into'a fast- 'ening inserting position during the first stage of movement 'of said mechanism and thereafter-and during the period of dwell'of said mechanism for reversing the movement'ofthe knives while holding the other knife stationary thereby-to sever the fastening from the fastening material.

7. Ina fastenin inserting machine, fastening forming mechanism movable relatively toa piece of work presentedto themachineinto a'pos'ition in which'a fasteningcontained thereinmay be in,- serted into the work, the fastening forming mechanism including an 1 inside I former and an outside -former,means for-moving the fastening forming mechanism into fastening inserting position in two stages separatedby a period of dwell, means including two relatively movable knives-adapted to sever afastem'ng from fastenin'gmaterial fed into said-mechanism, means for moving the two formers with relation to each other during the first stage of movement of the fasteningforming "mechanism to cause the formers to grip the fastening material-between them, means formoving both knives as a unit into fastening severing position during the first "stage 'of movement of the fastening forming mechanism and thereafter and during the period of dwell for reversing the movement of one of the knivesjwhile holding the other knife stationary thereby to sever a'fasteningfrom the fastening material, the means for moving the two formers being 'adaptedf'to resume the relative movements of said formers "during the second stage of the movement of said. mechanism thereby to form the severed fastening.

8. In a fastening insertingmachine, fastening forming mechanism, afastening inserting driver cooperating thereWith, a knife adapted to-present fastening material in a position to be cut, another knife cooperating with the first mentioned knife, and common actuating means for both knives adapted to'm'ove the knives as a unit into fastening severing, position and thereafter to reverse the movement of one'of the knives while holding the other knife stationary thereby to sever a fastening from the fastening material.

-9 ."In a fastening inserting machine, fastening for-mingmechanism; a fastening inserting driver cooperating therewith, akn'ife adapted' to present to the knives and separately operated by said cam portions.

10. In a fastening inserting machine, fastening forming mechanism movable relatively to a piece of work presented to the machine into a position in which a fastening contained therein may be inserted into the work, the fastening forming mechanism including an inside staple former having a slot provided with a widened Wire receiving portion and an outside staple former provided with a wire receiving recess, means for initially positioning the inside former and the outside former to cause said recess to cooperate with said wire receiving portion to guide the wire when being fed in, and for slightly retracting the inside former after a length of Wire has been fed to cause the wire to be located in the front portion of said slot and simultaneously for depressing the outside former to grip the wire, and means for severing the fastening from said wire.

BENJAMIN B. BLANCHARD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 584,744 Ladd et a1. June 15, 1897 1,025,248 Coupal May '7, 1912 1,815,295 Goddu July 21, 1931 1,854,310 Lawson Apr. 19, 1932 1,928,134 Newhouse Aug. 26, 1933 2,079,673 Allen May 11, 1937 2,111,608 Blanchard Mar. 22, 1938 2,160,877 Lane June 6, 1939 2,285,489 Blanchard June 9, 1942 FOREIGN PATENTS Number Country Date 125,481 Great Britain May 17, 19 17 

